Calculators and Equations

Exam Day 2019

Exam Resources

Calculator Policy

Four-function, scientific, or graphing calculator calculators are allowed only on the free-response section of the AP Chemistry Exam. Check the list of approved graphing calculators and bring only an approved graphing calculator.

Bring a calculator you are familiar with. It is a good idea to bring extra batteries. You may bring up to two calculators.

Commonly Used Equations and Constants

Tables containing commonly used equations and constants in chemistry are provided with each exam and can be used on both the multiple-choice and free-response section.

The equations are grouped in tables according to major content category. Within each table, the symbols used for the variables in that table are defined. However, in some cases the same symbol is used to represent different quantities in different tables. There is no uniform convention among textbooks for the symbols used in writing equations. The equation tables follow many common conventions, but in some cases consistency was sacrificed for the sake of clarity.

The equations in the tables express relationships encountered most frequently in an AP Chemistry course and exam. However, they do not include all equations that might possibly be used. Students are responsible for understanding the physical principles that underlie each equation and for knowing the conditions for which each equation is applicable.

The lists of equations and constants may be used during the entire exam. You should print out the list of equations and use them throughout the year to get used to using such a list in a testing situation. (You will find the equation list in Appendix B of the Course and Exam Description.) However, since the equations will be provided with the exams, you will NOT be allowed to bring your own copies to the exam room.